What I'm capable of?

What?? Did I learn??

Back when I was a child, I remember myself holding a pencil and a piece of paper having no idea on what to do with it. But when my parents sent me to pre-school, I learned how to write and how to draw.

In grade school, I was overwhelmed with the books I had because not everyone of us had a complete set of it and so, I learned how to share.

In my High School years, gadgets came. They were really useful in presentations especially in communication and everything seems to be easier than before when it comes to researches and projects. There's no need to re-write, cut and glue your work because you can just print it out then submit. But what I learned in my HS years, is to be thankful to God because I'm so lucky to have these gadgets that made me work easier while others do everything manually.

In College, I have everything now. Pen, paper, books and gadgets plus unlimited surf to the internet. It was really good, sooo great to study having these things, especially the internet. But sometimes I forgot on how to use them properly, especially the internet.

Internet. Yes, we do all have access on it. But how do we use it by the way? Social networking, online games, research purposes, entertainment, blogging etc.. There are a lot of ways on how to use it right? Isn't it  fun? If you're going to ask me on how do I use the internet, of course those that I only mentioned (hahaha). 

Blogging, the newest reason why I use the internet. To be honest, I don't really feel like writing anything when    I started, but because it is a requirement to write something it left me no choice. The kind of blog that were into is called EDUBLOG, a blog similar to the usual blogs but with more information (in every sub-topics) supported by a lot of references that is written in a manner that everyone could understand the subject matter. 

After seeing every post that I published, I realized how much it will help someone who's doing his/her researches right now and how much did it help me in improving my writing skills. Knowing that most of the students rely much on the internet as their source/references, edublogging was such a wonderful idea in sharing something you've learned along the way.

The pencil, paper, books and gadgets that we held until now were just things right? They can be easily replaced. We can always buy another one. What if you don't have them during those times? Where do you think you are now?  

Even though they're just things, they will give a very big role in achieving our goals only if we held them properly.

pasensya na po kung may wrong grammar man po. (:

Photo Source:
http://www.msnbc.msn.com/id/8999733/ns/technology_and_science-tech_and_gadgets/t/high-school-shuns-textbooks-laptops/#.UFXLXLJlTLs
http://www.ehow.com/how_8512658_make-preschool-writing-practice-sheets.html
http://savethechildren.typepad.com/blog/2012/01/spread-the-love-of-reading-to-your-grade-schooler-with-these-books-ages-6-8.html
http://coffeekettle.net/wp-content/uploads/2011/08/over-half-million-edu-blogs.jpg

COFFEE OVERDOSE

Happiness

I WANT MORE COFFEE!!! weeeee.. I bet you have some idea if coffee is really good/bad to your health. (don't bother to ask me about that cause that doesn't matter to me)At some point it helps and sometimes it kills us. But why? This time we're gonna talk about Toxicology to answer that question.


But before we start, I'll just ask you a few more questions. Is there a food/beverage that you are addicted to? Do you know that at some point it can be poisonous and sometimes beneficial to your health? Why do we have to learn about these things? Well, Toxicology will tell us why.

MORE COFFEE. PLEASE??

WHAT IS TOXICOLOGY?

Toxicology is a study of the adverse effects of chemicals on living organisms. It draws heavily on knowledge in chemical and biological fields and seek a detailed understanding of toxic effects and means to prevent or reduce toxicity.

BRANCHES OF TOXICOLOGY
Toxicology was broad and flourished from its early origins just like the other branches of science. Because of the difference in societal needs, Toxicology is divided in different specialties.

Clinical Toxicology- deals with the prevention and diagnosis of poisoning, that is practiced in a hospital or clinical setting

Forensic Toxicology- deals with the analysis of biological samples for the presence of potentially toxic substances and for the presence of drugs, and usually practiced in medico-legal aspect of drug testing.

Occupational Toxicology- it defines the conditions for their safe use of agents of concern in the workplace,  and prevent absorption of harmful amounts.

Environmental Toxicology- deals with the impact of chemicals on living organisms.

Food Toxicology- deals with the analysis and toxic effects of substances in food

Just give me my CAFFEINE and we will be best friends. 

Are you wondering why coffee keeps you awake all night? I'm sure that you know that it's caffeine who's responsible for it. Caffeine triggers the release of two hormones (Epinephrine and Norepinephrine) that stimulates your Central Nervous System and makes you feel more alert and awake. But what are the actions or effects of these hormones? Well, endocrinology can answer all your questions.

What is Endocrinology?

Should anyone ask me that query, I would tell them that... Endocrinology is the study of specialized cells called "endocrine glands" that secrete substances called "hormones" that cause reactions within specific cells.

As I take up the third subject under the broad expanse that is Clinical Chemistry, I will be sharing the things I would be learning along the way, hoping that you'd understand the concepts as I do. 

From the word itself, Endocrinology deals with endocrine glands and its functions. One of its function is to secrete hormones in order for certain reactions to take place. These hormones are classified by several properties; however, the most common among them is their classification by action.

To make it easy for you to understand, I will first state the meaning, then I will relate it to coffee and give specific examples. And why coffee, you ask? Well, to put it simply, it's one of the things in life that bring me happiness. Perhaps relating Endocrinology to coffee would help in presenting my ideas. 

Classification by its action

Autocrine Secretion

1. Autocrine secretion

• The substance secreted is reacted to the substance secreting cell itself.
• This is like when you crave for coffee, you simply make one and drink it.
• Example: Norepinephrine is secreted by the Neurosecretory Cell. It is also Norepinephrine that inhibits the Neurosecretory Cell to release more of it.

Paracrine Secretion

2. Paracrine secretion

• The substance secreted is reacted to the neighboring cell.
• This is like when your dad, who happens to be sitting beside you, wants a cup of coffee. You get up and make one for him to drink.
  
• Example: Histamine is secreted at the site of injury to initiate vasoconstriction to stop the bleeding.

Endocrine Secretion

3. Endocrine Secretion

• The substance is secreted into the blood stream to react with distant cells.
• This is like owing a coffee shop, and when a customer asks for coffee to be brought to his office because he is too preoccupied to get it, you send a delivery man to bring him his cup of coffee.
• Example: The Leydig cells of the testis secretes testosterone to make your hair grow in the armpit.

Now that you've had already a brief knowledge in Endocrinology, I think, you're ready to understand the different types of hormones. Just go along with me as we explore the world of Endocrinology. (:

References:

Book: Tortora; Derrickson; Principles of anatomy and physiology

Online: http://www.montana.edu/wwwbi/staff/creel/411lec28.pdf